class Book {
    public String name;
    public String type;

    public Book(String name, String type) {
        this.name = name;
        this.type = type;
    }

    public Book() {
    }
}


public class Use_super extends Book{
   // Book book = new Book("水浒传","小说");

    public Use_super() {
    }

   /* public Use_super(String name, String type) {
       super("水浒传","小说");
    }*/



}
